[llvm-bugs] [Bug 48685] New: Minimum lldb Python wrapper SWIG requirement should be 3 not 2

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=48685

            Bug ID: 48685
           Summary: Minimum lldb Python wrapper SWIG requirement should be
                    3 not 2
           Product: lldb
           Version: 11.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at lists.llvm.org
          Reporter: peter.klotz99 at gmail.com
                CC: jdevlieghere at apple.com, llvm-bugs at lists.llvm.org

Compiling of lldb under Red Hat Enterprise Linux 7 (with SWIG 2 from the repo)
results in this error message:

Scanning dependencies of target swig_wrapper
[ 12%] Building LLDB Python wrapper
/home/build/devel/clang/11.0.0/llvm-project-11.0.0/lldb/bindings/./python/python-typemaps.swig:484:
Error: Syntax error in input(3).
make[2]: *** [tools/lldb/bindings/LLDBWrapPython.cpp] Error 1
make[1]: *** [tools/lldb/bindings/CMakeFiles/swig_wrapper.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
[ 12%] Building CXX object
tools/clang/utils/TableGen/CMakeFiles/obj.clang-tblgen.dir/TableGen.cpp.o
[ 12%] Built target obj.clang-tblgen
make: *** [all] Error 2


In file python-typemaps.swig, line 484 one finds the C++11 keyword "delete":

481 struct Py_buffer_RAII {
482   Py_buffer buffer = {};
483   Py_buffer_RAII() {};
484   Py_buffer &operator=(const Py_buffer_RAII &) = delete;
485   Py_buffer_RAII(const Py_buffer_RAII &) = delete;
486   ~Py_buffer_RAII() {
487     if (buffer.obj)
488       PyBuffer_Release(&buffer);
489   }
490 };

C++11 support requires at least SWIG 3. So in my opinion the minimum
requirement should be changed.

After installing SWIG 3 from the CentOS 7 repo the build works fine.

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